Scraper evaporation device

Abstract

The utility model provides a scraper evaporation device, which belongs to the technical field of chemical equipment, and comprises an evaporation cylinder, a distribution mechanism and a stirring mechanism, the outer wall of the evaporation cylinder is provided with a heating jacket, the top of the evaporation cylinder is provided with a material outlet, and the bottom of the evaporation cylinder is provided with a kettle residue outlet; the distribution mechanism comprises a feeding pipe arranged at the top of the evaporation barrel and an annular distribution pipe arranged in the evaporation barrel; the feeding pipe is communicated with the annular distribution pipe, an annular distribution opening is formed in the lower portion of the annular distribution pipe, an annular guide plate is arranged at the annular distribution opening, and the annular guide plate inclines towards the inner wall of the evaporation barrel so that fed materials can be distributed to the inner wall of the evaporation barrel through the annular distribution opening and the annular guide plate. The annular distribution pipe and the annular flow guide plate achieve the effect of uniformly distributing the materials on the inner wall of the evaporation barrel, so that the problem that the product quality is influenced by product fluctuation caused by material splashing due to impact on the material distribution disc during feeding is solved, and the stability of the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical equipment, and in particular relates to a scraper evaporation device. Background Art

[0002] In conventional distribution plate scraper evaporation devices, the liquid enters the distribution plate directly through the feed pipe, which can easily cause the liquid to impact the distribution plate, causing splashing and affecting the distillation effect, and causing unstable product quality. At the same time, due to the small distribution opening, local blockage will seriously affect the uniform distribution of the material and affect the distillation effect. Utility Model Content

[0003] The utility model provides a scraper evaporation device, which aims to solve the problem of uneven distribution of feed liquid, splashing caused by the impact of feed liquid on the distribution plate, affecting the distillation effect, and causing unstable product quality.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a scraper evaporation device, comprising:

[0005] An evaporating cylinder, wherein the outer wall of the evaporating cylinder is provided with a heating jacket, the top of the evaporating cylinder is provided with a material outlet, and the bottom of the evaporating cylinder is provided with a kettle residue outlet;

[0006] a distribution mechanism, comprising a feed pipe arranged at the top of the evaporation cylinder and an annular distribution pipe arranged inside the evaporation cylinder; the feed pipe is connected to the annular distribution pipe, an annular distribution port is arranged below the annular distribution pipe, an annular guide plate is arranged at the annular distribution port, and the annular guide plate is inclined toward the inner wall of the evaporation cylinder, so that the feed is distributed to the inner wall of the evaporation cylinder through the annular distribution port and the annular guide plate; and

[0007] The stirring mechanism comprises a motor and a stirring shaft connected to the motor. The stirring shaft extends into the evaporating cylinder, and a plurality of supporting rods are arranged along the axial direction of the stirring shaft.

[0008] In one achievable manner, the angle between the annular guide plate and the inner wall of the evaporation cylinder is 45°-60°, and there is a gap between the lower end of the annular guide plate and the inner wall of the evaporation cylinder.

[0009] In one achievable manner, there is a gap of 2 mm to 5 mm between the lower end of the annular guide plate and the inner wall of the evaporation cylinder.

[0010] In one achievable manner, the annular guide plate is connected to a side of the annular distribution port away from the inner wall of the evaporation cylinder.

[0011] In one achievable manner, a horizontal distribution pipe is further provided between the feed pipe and the annular distribution pipe, and both ends of the horizontal distribution pipe are respectively connected to horizontal branch pipes, and both ends of the horizontal branch pipes are connected to the annular distribution pipe.

[0012] In one achievable manner, the annular distribution pipe is supported on the upper end of the evaporation cylinder by supporting bolts, and the annular distribution pipe is closely attached to the inner wall of the evaporation cylinder.

[0013] In one achievable manner, a scraper capable of contacting with the inner wall of the evaporation cylinder is provided at one end of the support rod away from the stirring shaft.

[0014] In one practicable manner, the scraper is detachably connected to the support rod via an adjustment assembly.

[0015] In one achievable manner, the adjustment assembly includes a sleeve, a fixing ring and a fastening bolt, the sleeve is fixed to the end of the support rod, the fixing ring is fixed to the scraper, and the fastening bolt passes through the sleeve and the fixing ring to connect the scraper to the support rod.

[0016] In one feasible manner, a reinforcement sleeve is further provided on the stirring shaft, and the reinforcement sleeve is coaxially connected to the stirring shaft. A first connecting plate is also provided on the reinforcement sleeve, and a second connecting plate is provided at the connecting end of the support rod and the stirring shaft. The support rod is connected to the second connecting plate by fixing bolts via the second connecting plate.

[0017] Compared with the prior art, the scraper evaporator provided by the utility model has the following beneficial effects: the annular distribution pipe and the annular guide plate can achieve the effect of evenly distributing the material on the inner wall of the evaporator cylinder, thereby solving the problem of material splashing caused by the impact of the distribution plate during feeding, resulting in product fluctuations and affecting product quality, thereby improving the stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the internal structure of a scraper evaporation device provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the top view of the distribution mechanism provided in an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure of the annular distribution pipe and the annular guide plate provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the top view of the stirring mechanism provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the connection structure of the support rods provided in the embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the exploded structure of the connection relationship between the two ends of the support rod provided by the embodiment of the utility model;

[0024] Description of reference numerals:

[0025] 1. Agitator shaft; 2. Support rod; 21. Second connecting plate; 3. Reinforcement sleeve; 31. First connecting plate; 4. Adjustment assembly; 41. Sleeve; 42. Fixing ring; 43. Fastening bolts; 5. Scraper; 6. Motor; 7. Annular distribution pipe; 71. Annular distribution port; 8. Annular guide plate; 9. Horizontal distribution pipe; 91. Horizontal branch pipe; 10. Feed pipe; 11. Evaporation cylinder; 12. Condensate outlet; 13. Steam inlet; 14. Jacket; 15. Material outlet; 16. Kettle residue outlet; 17. Support bolts. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Please also read Figure 1 and Figure 3 The scraper evaporation device provided by the utility model is now described. The scraper evaporation device includes an evaporation cylinder 11, a distribution mechanism and a stirring mechanism. The outer wall of the evaporation cylinder 11 is provided with a heating jacket 14, the top of the evaporation cylinder 11 is provided with a material outlet 15, and the bottom of the evaporation cylinder 11 is provided with a kettle residue outlet 16; the distribution mechanism includes a feed pipe 10 arranged at the top of the evaporation cylinder 11 and an annular distribution pipe 7 arranged inside the evaporation cylinder 11; the feed pipe 10 is connected to the annular distribution pipe 7, and an annular distribution port 71 is arranged below the annular distribution pipe 7, and an annular guide plate 8 is arranged at the annular distribution port 71, and the annular guide plate 8 is inclined toward the inner wall of the evaporation cylinder 11, so that the feed is distributed to the inner wall of the evaporation cylinder 11 through the annular distribution port 71 and the annular guide plate 8; the stirring mechanism includes a motor 6 and a stirring shaft 1 connected to the motor 6, the stirring shaft 1 extends into the evaporation cylinder 11, and a plurality of support rods 2 are arranged along the axial direction of the stirring shaft 1.

[0028] The scraper 5 evaporation device provided by the utility model, when in use, the material continuously enters the annular distribution pipe 7 from the feed pipe 10, the annular distribution port 71 of the annular distribution pipe 7 is connected to the annular guide plate 8, and the annular guide plate 8 is used to evenly distribute the material to the inner wall of the evaporation cylinder 11, and the material flows downward along the inner wall of the evaporation cylinder 11, and the scraper 5 scrapes the material on the inner wall of the evaporation cylinder 11 through the support rod 2 under the drive of the stirring shaft 1, and the steam after the material is heated and evaporated is collected from the material outlet 15 at the upper end of the evaporation cylinder 11, and the kettle residue is collected through the kettle residue outlet 16 at the lower end of the evaporation cylinder 11. In the whole process, the jacket 14 outside the evaporation cylinder 11 provides heat.

[0029] The jacket 14 is provided with a steam inlet 13 and a condensed water outlet 12 for circulation of evaporating steam.

[0030] The scraper 5 evaporation device provided by the utility model has the beneficial effect that the annular distribution pipe 7 and the annular guide plate 8 can achieve the effect of evenly distributing the material on the inner wall of the evaporation cylinder 11, thereby solving the problem of material splashing caused by the impact of the distribution plate during feeding, resulting in product fluctuations and affecting product quality, thereby improving the stability of product quality.

[0031] The evaporation cylinder 11 of the utility model is of segmented type, and the upper and lower heads can be disassembled separately, which is convenient for the maintenance of the inside of the equipment, solving the problem of inconvenient maintenance of the evaporation device; at the same time, the distribution mechanism of the utility model is not connected to the stirring shaft 1, and the annular distribution pipe 7 is fixed to the inner wall of the evaporation cylinder 11, so there is no friction, thus avoiding wear and the generation of mechanical impurities.

[0032] Therefore, the scraper 5 evaporation device provided in the present application can not only meet the demand for stable material distribution and solve the problem of product quality fluctuation caused by feeding, but also has the advantages of simple structure and convenient maintenance.

[0033] Optionally, the annular distribution opening 71 is a plurality of discharge holes evenly distributed along the circumferential direction of the annular distribution pipe 7, and the aperture of each discharge hole is 2-5 mm.

[0034] In some embodiments, Figure 3 As shown, the angle between the annular guide plate 8 and the inner wall of the evaporation cylinder 11 is 45°-60°, and there is a gap between the lower end of the annular guide plate 8 and the inner wall of the evaporation cylinder 11, so as to spread the material on the inner wall of the evaporation cylinder 11 and make the material flow downward.

[0035] In some embodiments, Figure 3 As shown, there is a gap of 2mm-5mm between the lower end of the annular guide plate 8 and the inner wall of the evaporation cylinder 11, so that the material can flow downward along the inner wall of the evaporation cylinder 11, and after encountering the scraper 5, the rotating scraper 5 is evenly scraped on the inner wall of the evaporation cylinder 11.

[0036] In some embodiments, Figure 3 As shown, the annular guide plate 8 is connected to the side of the annular distribution opening 71 away from the inner wall of the evaporation cylinder 11 , so that the annular distribution opening 71 faces the inner wall of the evaporation cylinder 11 .

[0037] In some embodiments, Figure 1 and Figure 2 As shown, a horizontal distribution pipe 9 is further provided between the feed pipe 10 and the annular distribution pipe 7, and both ends of the horizontal distribution pipe 9 are respectively connected to horizontal branch pipes 91, and both ends of the horizontal branch pipe 91 are connected to the annular distribution pipe 7. Through the cooperation of the horizontal distribution pipe 9 and the horizontal branch pipe 91, four feed ports are formed on the annular distribution pipe 7.

[0038] Optionally, the feed pipe 10 is welded to the horizontal distribution pipe 9, the horizontal branch pipe 91 is welded to the horizontal distribution pipe 9, and the annular distribution pipe 7 is welded to the horizontal branch pipe 91; the pipes may also be connected by pipe joints.

[0039] In some embodiments, Figure 1 and Figure 3 As shown, the annular distribution pipe 7 is supported on the upper end of the evaporation cylinder 11 by the support bolts 17, and the annular distribution pipe 7 is close to the inner wall of the evaporation cylinder 11. The support bolts 17 are provided with a plane for supporting the annular distribution pipe 7 to improve the stability of the support of the annular distribution pipe 7. The support bolts 17 can be welded to the inner wall of the evaporation cylinder 11.

[0040] In some embodiments, Figure 1 and Figure 4 As shown, a scraper 5 is provided at one end of the support rod 2 away from the stirring shaft 1, which can be attached to the inner wall of the evaporation cylinder 11. The scraper 5 increases the contact area with the inner wall of the evaporation cylinder 11, thereby scraping and coating the material evenly.

[0041] In some embodiments, Figure 1 and Figure 4 As shown, the scraper 5 is detachably connected to the support rod 2 through the adjustment assembly 4 so as to be disassembled and replaced.

[0042] In some embodiments, Figure 5 and Figure 6 As shown, the adjustment assembly 4 includes a sleeve 41, a fixing ring 42 and a fastening bolt 43. The sleeve 41 is fixed to the end of the support rod 2, the fixing ring 42 is fixed to the scraper 5, and the fastening bolt 43 passes through the sleeve 41 and the fixing ring 42 to connect the scraper 5 to the support rod 2. The sleeve 41 is welded to the support rod 2, and the fixing ring 42 is also welded to the scraper 5.

[0043] The scraper 5 is adjusted by swinging the scraper 5 so that the scraper 5 and the support rod 2 are arranged at an angle, and then tightened with the fastening bolts 43. At this time, the scraper 5 is at an acute angle relative to the inner wall of the evaporation cylinder 11. To further explain, at this time, the scraper 5 and the support rod 2 are distributed at an acute angle in the radial direction, rather than being in the radial direction of the support rod 2.

[0044] In some embodiments, Figure 1 , Figures 4 to 6 As shown, the stirring shaft 1 is also provided with a reinforcing sleeve 3, which is coaxially connected to the stirring shaft 1, and a first connecting plate 31 is also provided on the reinforcing sleeve 3. The connecting end of the support rod 2 and the stirring shaft 1 is provided with a second connecting plate 21, and the support rod 2 is connected with the second connecting plate 21 by a fixing bolt. Among them, the reinforcing sleeve 3 can be locked with the stirring shaft 1 by a locking screw to ensure the synchronous rotation of the reinforcing sleeve and the stirring shaft 1; through the two connecting plates, the support rod 2 and the stirring shaft 1 can also be detachably connected together, and if a fault occurs at this position, it is easy to disassemble and replace; the reinforcing sleeve also has a protective effect on the stirring shaft 1.

[0045] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A scraper evaporation device, characterized in that: include: An evaporation cylinder (11), wherein the outer wall of the evaporation cylinder (11) is provided with a heating jacket (14), the top of the evaporation cylinder (11) is provided with a material outlet (15), and the bottom of the evaporation cylinder (11) is provided with a kettle residue outlet (16); A distribution mechanism, comprising a feed pipe (10) arranged at the top of the evaporation cylinder (11) and an annular distribution pipe (7) arranged inside the evaporation cylinder (11); the feed pipe (10) is connected to the annular distribution pipe (7), an annular distribution port (71) is arranged below the annular distribution pipe (7), an annular guide plate (8) is arranged at the annular distribution port (71), and the annular guide plate (8) is inclined toward the inner wall of the evaporation cylinder (11), so that the feed is distributed to the inner wall of the evaporation cylinder (11) through the annular distribution port (71) and the annular guide plate (8); as well as The stirring mechanism comprises a motor (6) and a stirring shaft (1) connected to the motor (6); the stirring shaft (1) extends into the evaporating cylinder (11), and a plurality of supporting rods (2) are arranged along the axial direction of the stirring shaft (1).

2. The scraper evaporation device according to claim 1, characterized in that: The angle between the annular guide plate (8) and the inner wall of the evaporation cylinder (11) is 45°-60°, and there is a gap between the lower end of the annular guide plate (8) and the inner wall of the evaporation cylinder (11).

3. The scraper evaporation device according to claim 2, characterized in that: There is a gap of 2 mm to 5 mm between the lower end of the annular guide plate (8) and the inner wall of the evaporation cylinder (11).

4. The scraper evaporation device according to claim 1, characterized in that: The annular guide plate (8) is connected to a side of the annular distribution opening (71) that is away from the inner wall of the evaporation cylinder (11).

5. The scraper evaporation device according to claim 1, characterized in that: A horizontal distribution pipe (9) is also provided between the feed pipe (10) and the annular distribution pipe (7), and both ends of the horizontal distribution pipe (9) are respectively connected to horizontal branch pipes (91), and both ends of the horizontal branch pipe (91) are connected to the annular distribution pipe (7).

6. The scraper evaporation device according to claim 1, characterized in that: The annular distribution pipe (7) is supported on the upper end of the evaporation cylinder (11) by means of support bolts (17), and the annular distribution pipe (7) is in close contact with the inner wall of the evaporation cylinder (11).

7. The scraper evaporation device according to claim 1, characterized in that: A scraper (5) that can be in contact with the inner wall of the evaporation cylinder (11) is provided at one end of the support rod (2) away from the stirring shaft (1).

8. The scraper evaporation device according to claim 7, characterized in that: The scraper (5) is detachably connected to the support rod (2) via an adjustment assembly (4).

9. The scraper evaporation device according to claim 8, characterized in that: The adjustment assembly (4) comprises a sleeve (41), a fixing ring (42) and a fastening bolt (43); the sleeve (41) is fixed to the end of the support rod (2); the fixing ring (42) is fixed to the scraper (5); and the fastening bolt (43) passes through the sleeve (41) and the fixing ring (42) to connect the scraper (5) to the support rod (2).

10. The scraper evaporation device according to claim 7, characterized in that: The stirring shaft (1) is also provided with a reinforcement sleeve (3), the reinforcement sleeve (3) is coaxially connected to the stirring shaft (1), the reinforcement sleeve (3) is also provided with a first connecting plate (31), the connecting end of the support rod (2) and the stirring shaft (1) is provided with a second connecting plate (21), and the support rod (2) is connected to the second connecting plate (21) by fixing bolts via the second connecting plate (21).

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